Abstract
Calculations are described of the stress distribution in optical high-pressure windows consisting of a transparent cylinder which is supported by a plug bearing a hole as optical aperture. The method based on an extension of Love’s strain function, the Galerkin vector, takes advantage of the axisymmetry of the arrangement, thus allowing very economic computations. The results apply to homogeneous, isotropic materials in the linear-elastic region. Critical stress concentrations exist at the unsupported area, as the radial stress component will most probably become positive there and near the edge of the support where the maximum shear stress occurs. It is shown that, in general, thickness to diameter ratios greater than 0.5 will not improve the pressure resistance of the window significantly.
Published Version
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